Hydrocarbon-lamp.



L. BAXTER.

HYDROCARBON LAMP.

APPLICATION FILED OCT. 24,,1914.

1, 144,684. Patented June 29, 1915.

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LEONIDAS BAX'IER, OF DAYTON, OHIO, ASSIGNOR TO THE THOMAS LMANUFACTUBING COMPANY, OF DAYTON, OHIO, A CORPORATION OF OHIO.

HYDRO CARBON-LAMP.

Application filed October 24, 1914.

To all whom it may concern Be it known that I, LEONIDAS BAXTER, a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented new and useful Improvements in Hydrocarbon-Lamps, of which the following is a specification.

This invention relates to new and useful improvements in hydrocarbon lamps.

The object of the invention is to provide an eflicient, compact and well-appearing hydrocarbon lamp of that class in which the hydrocarbon fluid is forced to the burners by the pressure of air, from a suitable containing reservoir. The efliciency and other desirable qualities of the lamp are due to the marked features of improvement which will be fully pointed out and described in the following specification.

A preferred form of embodiment of my invention is illustrated in the accompanying drawings, of which Figure l is an elevational view of the lamp, with the shade partly broken away to reveal the burner parts. Fig. 2 is a top plan view of the combination burner and shade holder. And Fig. 3 is a longitudinal sectional view of the vaporizing tube, showing its flattened portion and countersunk opening.

Throughout the specification and drawings, similar reference characters denote corresponding parts.

In a detailed description of my invention, the numeral 1 designates a chamber or reservoir adapted to contain kerosene or other hydrocarbon fluid. Provided on the top of the reservoir 1 is an air-inlet valve 2 suitable for connection to any common form of air-pressure pump by which air may be compressed above the fluid in the chamber 1.

Mounted upon, and communicating with the reservoir 1, is a tubular standard 3 to the top of which is secured a valve casing 4 for any suitable form of valve which may be controlled by a hand wheel 5 attached to a valve stem 6. Threaded on the top of the valve casing 4 is a vaporizing tube 7 having a flattened portion 8 near its upper end, and a countersunk mouth 9 for a needle hole 10 provided in the top of said tube. (See Figs. 1 and 3). This countersunk portion 9 provides convenient access to the needle hole 10 for cleaning by means of a Wire or other suitable means.

Specification of Letters Patent.

Patented June 29, 1915.

Serial No. 868,522.

Threaded on the vaporizing tube 7 is a single aluminum casting comprising a mixing tube 11, air inlet tube 12, depending burner tubes 13, heat deflecting disk i l and shade supporting arms 15. For convenience,

the mixing tube 11, which communicates at its lower end with the air-inlet tube 12 disposed at right angles thereto and projecting an equal distance on each side thereof. Just below the air-inlet tube 12 and having a diameter of less length than the latter, is the heat deflecting disk 14 which is the member of the group that removably receives the vaporizing tube 7. The mixing tube 11 terminates at its upper end in a mixing head 16 from which depend, one on each side of said tube, the burner tubes 13. Each of the latter tubes extends through and below the heat deflecting disk 14, to receive on its lower end an inverted mantle 17.

Projecting laterally from the outer side of each of the burner tubes 13, a short distance below the tops thereof, is a shade supporting arm 15. A similar arm 15 projects laterally from the front and rear faces of the mixing tube 11, the outer ends of these and the first two mentioned arms being at an equal dis tance from a common central point. Each of these four arms 15 is suitably notched or recessed at its outer end to provide shoulders 18 adapted to receive a shade 19 at the base of its neck portion. The shade 19 may be readily placed upon, or removed from these arms, and when placed upon them, it will be firmly held in a proper position to reflect the light emitted by the mantles 17.

In order to insure a proper vaporization of the hydrocarbon fluid as it passes through the tube 7, the burner tubes 13 are so constructed and arranged as to support their respective mantles 17 on either side of, and in close proximity to said tube. Therefore, with the tube 7 between the mantles, much of the heat generated by the latter will be communicated to it during the operation of the lamp. To expose the greatest possible heating surface to the mantles 17, that portion of the tube 7 which lies between them is flattened or mashed as shown in Fig. 3, and the flat surfaces directly exposed to the heat of said mantles as illustrated in Fig. 1. In its flattened form the tube 7 will absorb a great amount of heat, and thereby efiect a more thorough and complete vaporization of the fluid which passes through it.

As has been stated, the casting comprising themixing tube 11 and other members hereinbefore enumerated, is preferably constructed of aluminum. This metal tends to make the lamp burn clean, or with little or no deposit of other matter in or about the burner parts. When constructed of aluminum, the burner casting is also made lighter in Weight, which is an important added advantage.

The disk l is mounted just above the mantles 17 to deflect as much of their heat as possible from the upper part of the lamp, where, among other things, it interferes with the fresh air which enters the air inlet l tube 12. This disk also serves to throw the ascending heat back upon the flattened portion 8 of the tube 7, to assist in making the latter a vaporizerof the highest efiiciency. It will thus be seen that this disk and the flattened portion of the tube 7 cooperate in causing the latter to be thoroughly heated by the mantles 17.

In operation, the air under pressure in the reservoir 1 forces the hydrocarbon fluid upwardly through the tubular standard 3, valve I tube, heat deflector and other improved features hereinbefore described.

Having described my invention, I claim In a hydrocarbon lamp, a mixing tube, a burner tube depending downwardly on each side of said mixing tube, radial arms extending outwardly from said mixing and burner tubes below the points of communication of the latter tubes with said mixing tube, and shoulders formed on the outer ends of said arms to receive a shade, said shoulders being equidistant from a common central point, substantially as described.

In testimony whereof I have hereunto set my hand this 23rd'day of October, 1914:.

LEONIDAS BAXTER. Witnesses:

W. B. JENNINGS, HOWARD S. SMITH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). G. 

